9665741472 has 192 divisors, whose sum is σ = 27567848448. Its totient is φ = 2958336000.

The previous prime is 9665741471. The next prime is 9665741497. The reversal of 9665741472 is 2741475669.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9665741471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4513522 + ... + 4515662.

It is an arithmetic number, because the mean of its divisors is an integer number (143582544).

Almost surely, 2^9665741472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9665741472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13783924224).

9665741472 is an abundant number, since it is smaller than the sum of its proper divisors (17902106976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9665741472 is a wasteful number, since it uses less digits than its factorization.

9665741472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2255 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 9665741472 is about 98314.5028569031. The cubic root of 9665741472 is about 2130.1575461505.

The spelling of 9665741472 in words is "nine billion, six hundred sixty-five million, seven hundred forty-one thousand, four hundred seventy-two".